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openwrt/target/linux/bcm27xx/patches-5.4/950-0710-overlays-Move-fixed-clock-nodes-to-the-root.patch
Álvaro Fernández Rojas f07e572f64 bcm27xx: import latest patches from the RPi foundation 
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2021-02-18 23:42:32 +01:00

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From 805e008c18ec09c4115e4cec413642028cd9a8e2 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Mon, 11 May 2020 15:12:21 +0100
Subject: [PATCH] overlays: Move "fixed-clock" nodes to the root
Apart from some special cases, device objects are only created for
nodes if they are children of a bus or the root node. "fixed-clock"
is one of the exceptions that will be instantiated wherever it is
found, but only during kernel initialisation - ruling out loading the
overlay at runtime.
Move most of the affected clocks to be children of the root, only
leaving those in overlays that could be multiply instantiated, to avoid
a potential name clash.
See: https://github.com/raspberrypi/linux/issues/3602
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
.../dts/overlays/audiosense-pi-overlay.dts | 14 ++++++-------
arch/arm/boot/dts/overlays/draws-overlay.dts | 12 +++++------
.../boot/dts/overlays/fe-pi-audio-overlay.dts | 2 +-
arch/arm/boot/dts/overlays/imx219-overlay.dts | 12 +++++------
.../arm/boot/dts/overlays/irs1125-overlay.dts | 17 +++++++++------
.../dts/overlays/mcp2515-can0-overlay.dts | 2 +-
.../dts/overlays/mcp2515-can1-overlay.dts | 2 +-
.../boot/dts/overlays/midi-uart0-overlay.dts | 2 +-
arch/arm/boot/dts/overlays/ov5647-overlay.dts | 17 +++++++++------
.../boot/dts/overlays/rpivid-v4l2-overlay.dts | 17 +++++++++------
.../dts/overlays/sc16is752-spi1-overlay.dts | 21 ++++++++++++-------
.../boot/dts/overlays/tc358743-overlay.dts | 17 +++++++++------
12 files changed, 80 insertions(+), 55 deletions(-)
--- a/arch/arm/boot/dts/overlays/audiosense-pi-overlay.dts
+++ b/arch/arm/boot/dts/overlays/audiosense-pi-overlay.dts
@@ -24,6 +24,13 @@
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
+
+ /* audio external oscillator */
+ codec_osc: codec_osc {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <12000000>; /* 12 MHz */
+ };
};
};
@@ -44,13 +51,6 @@
#size-cells = <0>;
status = "okay";
- /* audio external oscillator */
- codec_osc: codec_osc {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <12000000>; /* 12 MHz */
- };
-
codec: tlv320aic32x4@18 {
#sound-dai-cells = <0>;
compatible = "ti,tlv320aic32x4";
--- a/arch/arm/boot/dts/overlays/draws-overlay.dts
+++ b/arch/arm/boot/dts/overlays/draws-overlay.dts
@@ -30,6 +30,12 @@
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
+
+ sc16is752_clk: sc16is752_draws_clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <1843200>;
+ };
};
pps: pps {
@@ -78,12 +84,6 @@
pinctrl-names = "default";
pinctrl-0 = <&sc16is752_irq>;
-
- sc16is752_clk: sc16is752_clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <1843200>;
- };
};
tla2024: tla2024@48 {
--- a/arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts
+++ b/arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts
@@ -6,7 +6,7 @@
compatible = "brcm,bcm2835";
fragment@0 {
- target = <&clocks>;
+ target-path = "/";
__overlay__ {
sgtl5000_mclk: sgtl5000_mclk {
compatible = "fixed-clock";
--- a/arch/arm/boot/dts/overlays/imx219-overlay.dts
+++ b/arch/arm/boot/dts/overlays/imx219-overlay.dts
@@ -27,12 +27,6 @@
VDIG-supply = <&imx219_vdig>; /* 1.8v */
VDDL-supply = <&imx219_vddl>; /* 1.2v */
- imx219_clk: camera-clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <24000000>;
- };
-
port {
imx219_0: endpoint {
remote-endpoint = <&csi1_ep>;
@@ -90,6 +84,12 @@
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
};
+
+ imx219_clk: camera-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24000000>;
+ };
};
};
--- a/arch/arm/boot/dts/overlays/irs1125-overlay.dts
+++ b/arch/arm/boot/dts/overlays/irs1125-overlay.dts
@@ -21,12 +21,6 @@
pwdn-gpios = <&gpio 5 0>;
clocks = <&irs1125_clk>;
- irs1125_clk: camera-clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <26000000>;
- };
-
port {
irs1125_0: endpoint {
remote-endpoint = <&csi1_ep>;
@@ -75,4 +69,15 @@
cam0-pwdn = <&irs1125>,"pwdn-gpios:4";
};
};
+
+ fragment@5 {
+ target-path = "/";
+ __overlay__ {
+ irs1125_clk: camera-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <26000000>;
+ };
+ };
+ };
};
--- a/arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts
+++ b/arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts
@@ -35,7 +35,7 @@
/* the clock/oscillator of the can-controller */
fragment@3 {
- target-path = "/clocks";
+ target-path = "/";
__overlay__ {
/* external oscillator of mcp2515 on SPI0.0 */
can0_osc: can0_osc {
--- a/arch/arm/boot/dts/overlays/mcp2515-can1-overlay.dts
+++ b/arch/arm/boot/dts/overlays/mcp2515-can1-overlay.dts
@@ -35,7 +35,7 @@
/* the clock/oscillator of the can-controller */
fragment@3 {
- target-path = "/clocks";
+ target-path = "/";
__overlay__ {
/* external oscillator of mcp2515 on spi0.1 */
can1_osc: can1_osc {
--- a/arch/arm/boot/dts/overlays/midi-uart0-overlay.dts
+++ b/arch/arm/boot/dts/overlays/midi-uart0-overlay.dts
@@ -15,7 +15,7 @@
compatible = "brcm,bcm2835";
fragment@0 {
- target-path = "/clocks";
+ target-path = "/";
__overlay__ {
midi_clk: midi_clk {
compatible = "fixed-clock";
--- a/arch/arm/boot/dts/overlays/ov5647-overlay.dts
+++ b/arch/arm/boot/dts/overlays/ov5647-overlay.dts
@@ -21,12 +21,6 @@
pwdn-gpios = <&gpio 41 1>, <&gpio 32 1>;
clocks = <&ov5647_clk>;
- ov5647_clk: camera-clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <25000000>;
- };
-
port {
ov5647_0: endpoint {
remote-endpoint = <&csi1_ep>;
@@ -77,4 +71,15 @@
cam0-led = <&ov5647>,"pwdn-gpios:16";
};
};
+
+ fragment@5 {
+ target-path = "/";
+ __overlay__ {
+ ov5647_clk: camera-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ };
+ };
+ };
};
--- a/arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts
+++ b/arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts
@@ -26,12 +26,6 @@
clocks = <&hevc_clk>;
clock-names = "hevc";
-
- hevc_clk: hevc_clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <500000000>;
- };
};
};
};
@@ -53,4 +47,15 @@
};
};
};
+
+ fragment@2 {
+ target-path = "/";
+ __overlay__ {
+ hevc_clk: hevc_clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <500000000>;
+ };
+ };
+ };
};
--- a/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
+++ b/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
@@ -38,12 +38,6 @@
#gpio-controller;
#gpio-cells = <2>;
spi-max-frequency = <4000000>;
-
- sc16is752_clk: sc16is752_clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <14745600>;
- };
};
};
};
@@ -55,8 +49,19 @@
};
};
- __overrides__ {
+ fragment@3 {
+ target-path = "/";
+ __overlay__ {
+ sc16is752_clk: sc16is752_spi1_clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <14745600>;
+ };
+ };
+ };
+
+ __overrides__ {
int_pin = <&sc16is752>,"interrupts:0";
xtal = <&sc16is752_clk>,"clock-frequency:0";
- };
+ };
};
--- a/arch/arm/boot/dts/overlays/tc358743-overlay.dts
+++ b/arch/arm/boot/dts/overlays/tc358743-overlay.dts
@@ -21,12 +21,6 @@
clocks = <&tc358743_clk>;
clock-names = "refclk";
- tc358743_clk: bridge-clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <27000000>;
- };
-
port {
tc358743: endpoint {
remote-endpoint = <&csi1_ep>;
@@ -81,6 +75,17 @@
};
};
+ fragment@6 {
+ target-path = "/";
+ __overlay__ {
+ tc358743_clk: bridge-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <27000000>;
+ };
+ };
+ };
+
__overrides__ {
4lane = <0>, "-2+3";
link-frequency = <&tc358743>,"link-frequencies#0";
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